# xin = "xiaoming"
# zhiwei = "老师"
# gongsi = "北京市海淀区"
# print("姓名： %s" % xin)
# print("职位： %s" % zhiwei)
# print("公司： %s" % gongsi)
# print('--------------------------------------------------')
# print("欢迎使用用户管理系统")
# print("1. 注册新用户")
# print("2. 登录")
# print('--------------------------------------------------')
# name = ""
# password = ""
# flag = "y"
# while flag =="y":
# num = int(input("请选择菜单："))
# if num==1:
# name = input("请输入用户名：")
# if name =="admin":
# print("用户已经被占用！请重新操作")
# continue
# password = input("请输入密码：")
# if len(password)<6:
# print("密码不能小于六位")
#
# print("")
# elif num == 2:
# input_name=input("请输入用户名：")
# input_password = input("请输入密码")
# if name ==input_name and password == input_password:
# print("登录成功")
# break
# else:
# print("输入有误")
# continue
# star = "abcdef"
# print(star[::-1])
# def tixing(a,b,h):
# return (a+b)*h/2
# a = float(input("请输入梯形上边长"))
# b = float(input("请输入梯形下边长"))
# h = float(input("请输入梯形高"))
# mianji = tixing(a,b,h)
# print("梯形面积为",mianji)
# def panduan(num_4):
# if num_4%400 ==0 or num_4%4==0 and num_4%100!=0:
# return "为闰年"
# else:
# return "不是闰年"
#
# if __name__ == '__main__':
# nianfen = int(input("请输入年份："))
# print(panduan(nianfen))
# def print_info():
# print("++++++++++++++++++++++")
# print("欢迎来到学生管理系统")
# print("1.添加学生信息")
# print("2.修改学生信息")
# print("3.查看学生信息")
# print("4.删除学生信息")
# print("5.显示所有学生信息")
# print("6.退出")
# print("++++++++++++++++++++++")
# student_info = []
#
# def add_info():
# global student_info
# id = input("请输入学生的id:")
# name = input("请输入学生的姓名:")
# age = input("请输入学生的年龄:")
# sex = input("请输入学生的性别:")
# dict_info = {}
# dict_info["id"] = id
# dict_info["name"] = name
# dict_info["age"] = age
# dict_info["sex"] = sex
# student_info.append(dict_info)
# print(student_info)
#
#
#
#
# def xiu_info():
# global student_info
# num_3 = int(input("请输入需要修改的学生的id"))
# new_name = input("请输入新的名字 (回车不修改)")
# student_info[num_3-1]["name"] = new_name
# new_age = input("请输入新的年龄 (回车不修改)")
# student_info[num_3-1]["age"] = new_age
# new_sex = input("请输入新的性别 (回车不修改)")
# student_info[num_3-1]["sex"] = new_sex
# print(student_info)
#
#
#
# def show_info():
# global student_info
# num_4 = int(input("请输入要查询信息的学生id"))
# print(student_info[num_4-1])
#
#
# def del_info():
# global student_info
# num_5 = int(input("请输入要删除信息的学生id"))
# del student_info[num_5-1]
# all_info()
#
#
# def all_info():
# print(student_info)
#
#
#
# while 1:
# print_info()
# num_1 = input("请输入要执行的操作")
# if num_1 == "1":
# add_info()
# elif num_1 == "2":
# xiu_info()
# elif num_1 == "3":
# show_info()
# elif num_1 == "4":
# del_info()
# elif num_1 =="5":
# all_info()
# elif num_1 == "6":
# num_2 = input("你确定要退出码？(y or n)")
# if num_2 == "y":
#
# break
#
# elif num_2 == "n":
# continue
# list1 = [8,4,2,1,23,344,12]
# sum = 0
# for x in list1:
# print('数字的值:',x)
# sum +=x
# print('和:%d'%sum)
# num = int(input('请输入你要查找的数字:'))
# if list1.count(num)==0:
# print('数字不存在!')
# else:
# print('存在')
# arrScore =[];
# i = 1
# while i<=5:
# s = float(input('请录入第%d个人的成绩:'%i))
# i +=1
# arrScore.append(s)
# #排序
# arrScore.sort()
# print(arrScore)
